protected void Reset(Promise owner, CancelationToken cancelationToken)
{
_owner = owner;
_handling = false;
_done = false;
_suspended = false;
_canceled = false;
_current = default(UnsignedFixed32);
SetCreatedStacktrace(this, 4);
if (cancelationToken.CanBeCanceled)
{
_cancelationRegistration = cancelationToken.RegisterInternal(this);
}
}
public static Promise CreateSequence <TEnumerator>(TEnumerator promiseFuncs, CancelationToken cancelationToken = default(CancelationToken)) where TEnumerator : IEnumerator <Func <Promise> >
{
ValidateArgument(promiseFuncs, "promiseFuncs", 2);
if (!promiseFuncs.MoveNext())
{
return(Resolved());
}
// Invoke funcs async and normalize the progress.
Promise rootPromise;
if (cancelationToken.CanBeCanceled)
{
var newPromise = PromiseResolvePromise <DelegateVoidPromiseCancel> .GetOrCreate();
newPromise.resolver = new DelegateVoidPromiseCancel(promiseFuncs.Current);
newPromise.resolver.cancelationRegistration = cancelationToken.RegisterInternal(newPromise);
// Set resolved value only if cancelation token wasn't already canceled (_valueOrPrevious will be a cancel value from being invoked synchronously).
if (newPromise._valueOrPrevious == null)
{
newPromise._valueOrPrevious = Internal.ResolveContainerVoid.GetOrCreate();
}
rootPromise = newPromise;
}
else
{
var newPromise = PromiseResolvePromise <DelegateVoidPromise> .GetOrCreate();
newPromise.resolver = new DelegateVoidPromise(promiseFuncs.Current);
newPromise._valueOrPrevious = Internal.ResolveContainerVoid.GetOrCreate();
rootPromise = newPromise;
}
rootPromise.ResetDepth();
Promise promise = rootPromise;
while (promiseFuncs.MoveNext())
{
promise = promise.Then(promiseFuncs.Current, cancelationToken);
}
Internal.AddToHandleQueueBack(rootPromise); return(promise);
}